public static void main(String args[]) {

        String osname = System.getOSName();

        InputStream is = null;

        StringBuffer buf = new StringBuffer();

        int c;
 
 

        if (osname.equals("OSS")) {

            is = System.execin("pwd");

        } else if (osname.equals("****")) {

            is = System.execin(".net");

        }

        if (is != null) {

            while ((c = is.read()) != -1)

                buf.appendChar((char)c);

            System.out.print(buf.toString());

        }

    }

}